- World's smallest and largest Woodward aircraft governor controls in the Oldwoodward.com collection.
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- Woodward CSSA model 210085 lever head type with accumulator unfeathering(valve).
- WOODWARD CONSTANT-SPEED HYDRAULIC PROPELLER GOVERNOR Type CSSA, CIRCA 1950'S.
- Woodward constant-speed hydraulic propeller governor type CSSA advertisement.
- W. F.& John Barns factory history.
- W. F.& John Barns Company product.
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- W. F.& John Barns Company model drill.
- W. F.& John Barns Company Letterhead.
- W. F.& John Barns Company drill on display.